R3112x SERIES
LOW VOLTAGE DETECTOR WITH OUTPUT DELAY
NO. EA-087-160310
1
OUTLINE
The R3112x Series are CMOS-based voltage detector ICs with high detector threshold accuracy and ultra-low
supply current, which can be operated at an extremely low voltage and is used for system reset as an example.
Each of these ICs consists of a voltage reference unit, a comparator, resistor net for detector threshold setting,
an output driver, a hysteresis circuit, and an output delay circuit. The detector threshold is fixed with high
accuracy internally and does not require any adjustment. Two output types, Nch open drain type and CMOS type
are available.
Three types of packages, SOT-23-5, small SC-82AB, SC-88A and ultra-small SON1612-6 can be selected so
that high density mounting on boards is possible.
FEATURES
Built-in Output Delay Circuit ............................................... Typ. 100ms with an external capacitor: 0.022F
Supply Current ................................................................... Typ. 0.5A (R3112x27xA/C, VDD2.6V)
Operating Voltage .............................................................. 0.7 to 6.0V (Topt25C)
Detector Threshold............................................................. 0.9V to 5.0V (0.1V steps)
Detector Threshold Accuracy ............................................. 2.0%
Temperature-Drift Coefficient of Detector Threshold ............ Typ. 100ppm/C
Output Types ...................................................................... Nch Open Drain and CMOS
Packages ........................................................................... SON1612-6, SC-82AB, SC-88A, SOT-23-5
APPLICATIONS
CPU and Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-up Circuit
Power Failure Detector
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
2
BLOCK DIAGRAMS
R3112xxxxA R3112xxxxC
GND
V
DD
-
+
Vref
OUT
R
D
C
D
GND
V
DD
-
+
Vref
OUT
R
D
C
D
SELECTION GUIDE
The package type, the detector threshold, and the output type for the ICs can be selected at the users’
request.
Product Name Package Quantity per Reel Pb Free Halogen Free
R3112Dxx1-TR-FE SON1612-6 4,000 pcs Yes Yes
R3112Qxx1-TR-FE SC-82AB 3,000 pcs Yes Yes
R3112Qxx2-TR-FE SC-88A 3,000 pcs Yes Yes
R3112Nxx1-TR-FE SOT-23-5 3,000 pcs Yes Yes
xx : The detector threshold can be designated in the range from 0.9V(09) to 5.0V(50) in 0.1V steps.
: Designation of Output Type
(A) Nch Open Drain
(C) CMOS
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
3
PIN CONFIGURATION
SON1612-6 SC-82AB SC-88A SOT-23-5
1 2 3
6 5 4
(mark side)
4 3
12
(mark side)
54
13
2
(mark side)
1 2 3
4
5
(mark side)
PIN DESCRIPTION
SON1612-6
Pin No Symbol Pin Description
1 OUT Output Pin (Output "L" at detection)
2 GND Ground Pin
3 CD Pin for External Capacitor (for setting output delay)
4 NC No Connection
5 GND Ground Pin
6 VDD Voltage Supply Pin
SC-82AB
Pin No Symbol Pin Description
1 VDD Voltage Supply Pin
2 GND Ground Pin
3 CD Pin for External Capacitor (for setting output delay)
4 OUT Output Pin (Output "L" at detection)
SC-88A
Pin No Symbol Pin Description
1 VDD Voltage Supply Pin
2 NC No Connection
3 GND Ground Pin
4 CD Pin for External Capacitor (for setting output delay)
5 OUT Output Pin (Output "L" at detection)
SOT-23-5
Pin No Symbol Pin Description
1 OUT Output Pin (Output "L" at detection)
2 VDD Voltage Supply Pin
3 GND Ground Pin
4 NC No Connection
5 CD Pin for External Capacitor (for setting output delay)
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
4
ABSOLUTE MAXIMUM RATINGS
Symbol Item Rating Unit
VDD Supply Voltage 6.5 V
VOUT Output Voltage (CMOS) VSS
0.3 to VDD0.3 V
Output Voltage (Nch) VSS
0.3 to 6.5 V
IOUT Output Current 20 mA
PD
Power Dissipation (SON1612-6) 500
mW
Power Dissipation (SC-82AB) 380
Power Dissipation (SC-88A) 380
Power Dissipation (SOT-23-5) 420
Topt Operating Temperature Range
40 to 85 C
Tstg Storage Temperature Range
55 to 125 C
) For Power Dissipation, please refer to PACKAGE INFORMATION.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the device
in the field.
The functional operation at or over these absolute maximum ratings is not assured.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor devices may receive serious damage when they continue
to operate over the recommended operating conditions.
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
5
ELECTRICAL CHARACTERISTICS
R3112xxxxA/C Topt25C
Symbol Item Conditions Min. Typ. Max. Unit
-VDET Detector Threshold -VDET
0.98 -VDET
1.02 V
VHYS Detector Threshold
Hysteresis -VDET
0.03
-VDET
0.05
-VDET
0.07 V
ISS Supply Current
-VDET<1.1V VDD
-VDET
0.1V 0.6 2.0
A
VDD
-VDET
1.0V 0.5 2.0
1.1V ≤-VDET<1.6V VDD
-VDET
0.1V 0.7 2.5
VDD
-VDET
1.0V 0.5 2.0
1.6V ≤-VDET<3.1V VDD
-VDET
0.1V 1.0 3.0
VDD
-VDET
1.0V 0.5 2.5
3.1V ≤-VDET<4.1V VDD
-VDET
0.1V 1.2 3.0
VDD
-VDET
1.0V 0.6 2.5
4.1V ≤-VDET VDD
-VDET
0.1V 1.5 3.0
VDD
-VDET
1.0V 0.6 2.5
VDDH
Maximum Operating Voltage
6.0 V
VDDL Minimum Operating
Voltage
Topt
25C 0.7 V
40C≤Topt≤85C 0.8
IOUT Output Current
(Driver Output Pin)
Nch
VDS
0.05V
VDD0.7V 0.01 0.12
mA
-VDET<1.1V VDS
0.50V
VDD0.85V 0.05 0.9
1.1V ≤-VDET<1.6V VDS
0.50V
VDD1.00V 0.2 1.8
1.6V ≤-VDET VDS
0.50V
VDD1.50V 1.0 3.0
Pch
-VDET<4.0V VDS
2.1V
VDD4.50V 1.5 3.5
mA
4.0V ≤-VDET VDS
2.1V
VDD6.00V 2.0 4.5
VTCD CD pin Threshold
Voltage VDD-VDET1.1V VDD
0.3
VDD
0.5
VDD
0.7 V
ICD CD pin Output Current
VDS0.1V, VDD
0.7V 20 70
A
-VDET<1.1V
V
DS
0.50V, V
DD
0.85V
10 400
1.1V
≤-V
DET
<1.6V
V
DS
0.50V, V
DD
1.00V
50 450
1.6V ≤-VDET
V
DS
0.50V, V
DD
1.50V
200 500
RD
Output Delay Resistance
3.25 6.5 13 M
-VDET/
Topt
Detector Threshold
Temperature Coefficient
40C≤Topt≤85C 100 ppm/
C
Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less.
(In the case of Nch Open Drain Type, Output pin is pulled up with a resistance of 470k to 5.0V.)
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
6
ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD
Detector
Threshold
Hysteresis
Range Supply Current 1 Supply Current 2 Output Current 1 Output Current 2
Product Code
-VDET[V] VHYS[V] ISS1[A] ISS2[A] IOUT1[mA] IOUT2[mA]
Min. Typ. Max. Min. Typ. Max.
Condi-
tions
Typ. Max.
Condi-
tions
Typ. Max.
Condi-
tions
Min. Typ. Conditions Min. Typ.
R3112x09xA/C 0.882 0.900 0.918 0.027 0.045 0.063
V
DD
-V
DET
0.1V
0.6 2.0
V
DD
-V
DET
1.0V
0.5 2.0
V
DS
0.05V
V
DD
0.7V
0.01 0.12 Nch
V
DS
0.5V
V
DD
0.85V
0.05 0.9
R3112x10xA/C 0.980 1.000 1.020 0.030 0.050 0.070
R3112x11xA/C 1.078 1.100 1.122 0.033 0.055 0.077
0.7 2.5
V
DS
0.5V
V
DD
1.0V
0.2 1.8
R3112x12xA/C 1.176 1.200 1.224 0.036 0.060 0.084
R3112x13xA/C 1.274 1.300 1.326 0.039 0.065 0.091
R3112x14xA/C 1.372 1.400 1.428 0.042 0.070 0.098
R3112x15xA/C 1.470 1.500 1.530 0.045 0.075 0.105
R3112x16xA/C 1.568 1.600 1.632 0.048 0.080 0.112
1.0 3.0 0.5 2.5
V
DS
0.5V
V
DD
1.5V
1.0 3.0
R3112x17xA/C 1.666 1.700 1.734 0.051 0.085 0.119
R3112x18xA/C 1.764 1.800 1.836 0.054 0.090 0.126
R3112x19xA/C 1.862 1.900 1.938 0.057 0.095 0.133
R3112x20xA/C 1.960 2.000 2.040 0.060 0.100 0.140
R3112x21xA/C 2.058 2.100 2.142 0.063 0.105 0.147
R3112x22xA/C 2.156 2.200 2.244 0.066 0.110 0.154
R3112x23xA/C 2.254 2.300 2.346 0.069 0.115 0.161
R3112x24xA/C 2.352 2.400 2.448 0.072 0.120 0.168
R3112x25xA/C 2.450 2.500 2.550 0.075 0.125 0.175
R3112x26xA/C 2.548 2.600 2.652 0.078 0.130 0.182
R3112x27xA/C 2.646 2.700 2.754 0.081 0.135 0.189
R3112x28xA/C 2.744 2.800 2.856 0.084 0.140 0.196
R3112x29xA/C 2.842 2.900 2.958 0.087 0.145 0.203
R3112x30xA/C 2.940 3.000 3.060 0.090 0.150 0.210
R3112x31xA/C 3.038 3.100 3.162 0.093 0.155 0.217
1.2 3.0 0.6 2.5
R3112x32xA/C 3.136 3.200 3.264 0.096 0.160 0.224
R3112x33xA/C 3.234 3.300 3.366 0.099 0.165 0.231
R3112x34xA/C 3.332 3.400 3.468 0.102 0.170 0.238
R3112x35xA/C 3.430 3.500 3.570 0.105 0.175 0.245
R3112x36xA/C 3.528 3.600 3.672 0.108 0.180 0.252
R3112x37xA/C 3.626 3.700 3.774 0.111 0.185 0.259
R3112x38xA/C 3.724 3.800 3.876 0.114 0.190 0.266
R3112x39xA/C 3.822 3.900 3.978 0.117 0.195 0.273
R3112x40xA/C 3.920 4.000 4.080 0.120 0.200 0.280
R3112x41xA/C 4.018 4.100 4.182 0.123 0.205 0.287
1.5 3.0 0.6 2.5
R3112x42xA/C 4.116 4.200 4.284 0.126 0.210 0.294
R3112x43xA/C 4.214 4.300 4.386 0.129 0.215 0.301
R3112x44xA/C 4.312 4.400 4.488 0.132 0.220 0.308
R3112x45xA/C 4.410 4.500 4.590 0.135 0.225 0.315
R3112x46xA/C 4.508 4.600 4.692 0.138 0.230 0.322
R3112x47xA/C 4.606 4.700 4.794 0.141 0.235 0.329
R3112x48xA/C 4.704 4.800 4.896 0.144 0.240 0.336
R3112x49xA/C 4.802 4.900 4.998 0.147 0.245 0.343
R3112x50xA/C 4.900 5.000 5.100 0.150 0.250 0.350
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
7
Output Current 3 Minimum Operating
Voltage
CD pin Threshold
Voltage
CD pin Output
Current 1
CD pin Output
Current 2
Resistance for
Output Delay
Detector
Threshold
Temperature
IOUT3[mA] VDDL[V] VTCD[V] ICD1[A] ICD2[A] RD[M]
-VDET/
Topt
[ppm/C]
Condition Min. Typ.
Condi-
tion
Max.
Condi-
tion
Max.
Condi-
tion
Min. Typ. Max.
Condi-
tion
Min. Typ.
Condi-
tion
Min. Typ. Min. Typ. Max.
Condi-
tion
Typ.
Pch
V
DS
2.1V
V
DD
4.5V
1.5 3.5
Topt

25
C 0.7
40
C
Topt
85
C
0.8
V
DD
(-V
DET
)
1.1V
0.297 0.495 0.693
V
DS
0.1V
V
DD
0.7V
20 70
V
DS
0.5V
V
DD
0.85V
10 400
3.25 6.5 13.0
40
C
Topt
85
C
100
0.330 0.550 0.770
0.363 0.605 0.847 V
DS
0.5V
V
DD
1.0V
50 450
0.396 0.660 0.924
0.429 0.715 1.001
0.462 0.770 1.078
0.495 0.825 1.155
0.528 0.880 1.232
V
DS
0.5V
V
DD
1.5V
200 500
0.561 0.935 1.309
0.594 0.990 1.386
0.627 1.045 1.463
0.660 1.100 1.540
0.693 1.155 1.617
0.726 1.210 1.694
0.759 1.265 1.771
0.792 1.320 1.848
0.825 1.375 1.925
0.858 1.430 2.002
0.891 1.485 2.079
0.924 1.540 2.156
0.957 1.595 2.233
0.990 1.650 2.310
1.023 1.705 2.387
1.056 1.760 2.464
1.089 1.815 2.541
1.122 1.870 2.618
1.155 1.925 2.695
1.188 1.980 2.772
1.221 2.035 2.849
1.254 2.090 2.926
1.287 2.145 3.003
V
DS
2.1V
V
DD
6.0V
2.0 4.5
1.320 2.200 3.080
1.353 2.255 3.157
1.386 2.310 3.234
1.419 2.365 3.311
1.452 2.420 3.388
1.485 2.475 3.465
1.518 2.530 3.542
1.551 2.585 3.619
1.584 2.640 3.696
1.617 2.695 3.773
1.650 2.750 3.850
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
8
OPERATION
VDD
Pch
Rc
Tr.1 Tr.2
Rb
Ra
Nch
RD
OUT
CD
GND
+
-
Vref
Schmitt Trigger
Comparator
Current Source
Output Capacitor
Fig. 1 Block Diagram with an external capacitor
t
D
GND
GND
V
DDL
-
V
DET
+V
DET
Detector Threshold
Released Voltage
Minimum Operating Voltage
12 3 4 5
A B
Detector Threshold
Hysteresis
Supply Voltage
(V
DD
)
Output Voltage
(V
OUT
)
t
PHL
Detect
Delay Time
Step 1 2 3 4 5
Comparator (
)
Pin Input Voltage I II II II I
Comparator Output L H Indefinite H L
Tr.1,2 OFF ON Indefinite ON OFF
Pch ON OFF Indefinite OFF ON
Output Tr.
Nch OFF ON Indefinite ON OFF
IV
DD
Rb
Rc
RaRbRc
II V
DD
Rb
RaRb
Fig. 2 Operation Diagram
1. Output voltage is equal to supply voltage. (As for Nch open drain type, equal to pull-up voltage.)
2. When the supply voltage is down to the detector threshold voltage level(Point A),
Vref≥V
DD(RbRc)/(RaRbRc) is true, then output of the comparator is reversed from "L" to "H", therefore
output voltage becomes GND level.
3. When the supply voltage is lower than minimum operating voltage, the operation of output transistor is
indefinite. In the case of Nch open drain type, output voltage is equal to pull-up voltage.
4. Output Voltage becomes GND level.
5. When the supply voltage is higher than released voltage (Point B), Vref≤V
DDRb/(RaRb) is true, then
output of the comparator reaches the threshold level, and Output of Shmitt Trigger is reversed from "H" to
"L", then output voltage is equal to supply voltage. (As for Nch open drain type, equal to pull-up voltage.)
) The difference between released voltage and detector threshold voltage means hysteresis range voltage.
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
9
Operation of Output Delay
GND
GND
Released Voltage (+VDET)
CD Pin Threshold Voltage (VTCD)
Output Delay Time(tD)
Output Voltage
Capacitor Voltage
Supply Voltage
When the supply voltage which is higher than released voltage is forced to VDD pin, charge to an external
capacitor starts, then capacitor voltage increases. Until the capacitor voltage reaches to CD Pin threshold voltage,
output voltage maintains "L". When the capacitor voltage becomes higher than CD pin threshold voltage, output
voltage is reversed from "L" to "H". Where, the time interval between the rising edge of supply voltage and output
voltage reverse point means output delay time.
Output Delay Time
Output Delay Time (tD) can be calculated with the next formula.
tD0.69RDCD(s)
RD is internal resistor and set at 6.5M(Typ.) typically. CD(F) describes the capacitance value of an external
capacitor. Therefore,
tD0.696.5106CD(s)
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
10
TEST CIRCUITS
Pull-up circuit is not necessary for CMOS Output type, or R3112xxxxC.
R3112x
V
DD
V
IN
I
SS
GND
R3112x
V
DD
OUT
+5V or V
DD
470kΩ
V
IN
GND
Supply Current Test Circuit Detector Threshold Test Circuit
VDD
OUT
VIN
VDS
GND
IOUT
R3112x
V
DD
OUT
V
IN
V
DD
+V
DS
GND
I
OUT
R3112x
Nch Driver Output Current Test Circuit Pch Driver Output Current Test Circuit
Apply only to CMOS
VDD
CD
OUT
+5V or VDD
470kΩ
VIN
GND
VDS
R3112x
V
DD
C
D
V
IN
GND
V
DS
I
CD
R3112x
CD Pin Threshold Test Circuit CD Pin Output Current Test Circuit
Input
Voltage
(VDD)
Output
Voltage
(VOUT)
VDET2.0V or 0.6V
0.7V
GND
100%
50%
GND
tDtPHL
R3112x
V
DD
C
D
O
UT
+5V
470kΩ
V
IN
GND
C
D
Output Delay Time Test Circuit
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
11
TYPICAL CHARACTERISTICS
1) Supply Current vs. Input Voltage
R3112x09xA/C R3112x13xA/C
1.5
1.2
0.9
0.6
0.3
0
Input Voltage V
IN
(V)
Supply Current I
ss
(μA)
01234567
Topt=85°C
-40°C
25°C
1.5
1.2
0.9
0.6
0.3
0
Input Voltage V
IN
(V)
Supply Current I
ss
(μA)
01234567
Topt=85°C
-40°C
25°C
R3112x27xA/C R3112x45xA/C
1.5
1.2
0.9
0.6
0.3
0
Input Voltage V
IN
(V)
Supply Current I
ss
(μA)
01234567
Topt=85°C
-40°C
25°C
2.0
1.6
1.2
0.8
0.4
0
Input Voltage V
IN
(V)
Supply Current I
ss
(μA)
01234567
Topt=85°C
-40°C
25°C
2) Detector Threshold vs. Temperature
R3112x09xA/C R3112x13xA/C
0.98
0.88
0.86
Temperature Topt(°C)
Detector Threshold/Released Voltage
VDET(V)
-50 -25 75 1000 25 50
0.90
0.92
0.94
0.96 +V
DET
-V
DET
1.42
1.28
1.26
Temperature Topt(°C)
Detector Threshold/Released Voltage
V
DET
(V)
-50 -25 75 1000 25 50
1.30
1.32
1.34
1.36
1.38
1.40
+V
DET
-V
DET
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
12
R3112x27xA/C R3112x45xA/C
2.90
2.65
2.60
Temperature Topt(°C)
Detector Threshold/Released Voltage
VDET(V)
-50 -25 75 1000 25 50
2.70
2.75
2.80
2.85 +V
DET
-V
DET
4.75
4.40
4.35
Temperature Topt(°C)
Detector Threshold/Released Voltage
V
DET
(V)
-50 -25 75 1000 25 50
4.45
4.50
4.55
4.60
4.65
4.70 +V
DET
-V
DET
3) Output Voltage vs. Input Voltage
R3112x09xA/C R3112x09xA
1.0
0.8
0.6
0.4
0.2
0.0
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0 0.2 0.8 10.4 0.6
Nch Output Type: VDD pull up
Topt=-40°C
25°C
85°C
6.0
5.0
4.0
3.0
2.0
0.0
Input Voltage VIN(V)
Output Voltage VOUT(V)
0 0.2 0.8 10.4 0.6
1.0
5V pull up via 470kΩ
Topt=-40°C
25°C
85°C
R3112x13xA/C R3112x13xA
1.5
1.2
0.9
0.6
0.3
0
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0 0.3 1.2 1.50.6 0.9
Nch Output Type: V
DD
pull up
Topt=-40°C
25°C
85°C
6.0
5.0
4.0
3.0
2.0
0.0
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0 0.3 1.2 1.50.6 0.9
1.0
5V pull up via 470kΩ
Topt=-40°C
25°C
85°C
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
13
R3112x27xA/C R3112x27xA
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Nch Output Type: V
DD
pull up
Topt=-40°C
25°C
85°C
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0.0 0.5 1.0 1.5 2.0 2.5 3.0
5V pull up via 470kΩ
Topt=-40°C
25°C
85°C
R3112x45xA/C R3112x45xA
5.0
4.5
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.0
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Nch Output Type: V
DD
pull up
Topt=-40°C
25°C85°C
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0.0 0.5 1.0 2.0 3.5 4.0 5.02.5 3.01.5 4.5
5V pull up via 470kΩ
Topt=-40°C
25°C
85°C
4) Nch Driver Output Current vs. VDS
R3112x09xA/C R3112x13xA/C
1.2
1.0
0.6
0.4
0.2
0
VDS(V)
Output Current IOUT(mA)
0 0.2 0.4 0.6 0.8 1
0.8
Topt=25°C
VDD=0.85V
0.7V
2.5
2.0
1.5
1.0
0.5
0
VDS(V)
Output Current IOUT(mA)
0 0.2 0.4 0.6 0.8 1
Topt=25°C
VDD=1.0V
0.85V
0.7V
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
14
R3112x27xA/C R3112x45xA/C
20
16
12
8
4
0
V
DS
(V)
Output Current I
OUT
(mA)
0 0.5 1 1.5 2 2.5
Topt=25°C
V
DD=2.5V
1.0V
1.5V
2.0V
20
16
12
8
4
0
VDS(V)
Output Current IOUT(mA)
0 0.5 1.5 3 3.5 421 2.5
Topt=25°C
VDD=2.5V
VDD=3.0V
VDD=4.0V
VDD=3.5V
1.0V
1.5V
2.0V
5) Nch Driver Output Current vs. Input Voltage
R3112x09xA/C R3112x13xA/C
2.0
1.5
1.0
0.5
0.0
Input Voltage V
IN
(V)
Output Current I
OUT
(mA)
0 0.2 0.4 0.6 0.8 1
Topt=25°C
-40°C
85°C
5
4
2
1
0
Input Voltage VIN(V)
Output Current IOUT(mA)
0 0.3 0.6 0.9 1.2 1.5
3
Topt=-40°C
85°C
25°C
R3112x27xA/C R3112x45xA/C
5
4
0
Input Voltage V
IN
(V)
Output Current I
OUT
(mA)
0 0.5 31 1.5 2 2.5
3
2
1
Topt=-40°C
85°C
25°C
5
4
0
Input Voltage V
IN
(V)
Output Current I
OUT
(mA)
012345
3
2
1
Topt=-40°C
85°C
25°C
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
15
6) Pch Driver Output Current vs. Input Voltage
R3112x09xC R3112x13xC
6
1
0
Input Voltage VIN(V)
Output Current IOUT(mA)
01 4 67532
2
3
4
5
Topt=25°C
VDS=-2.1V
-0.5V
-1.0V
-1.5V
6
1
0
Input Voltage VIN(V)
Output Current IOUT(mA)
01 4 67532
2
3
4
5
Topt=25°C
VDS=-2.1V
-0.5V
-1.0V
-1.5V
R3112x27xC R3112x45xC
6
1
0
Input Voltage VIN(V)
Output Current IOUT(mA)
01 4 67532
2
3
4
5
Topt=25°C
VDS=-2.1V
-0.5V
-1.0V
-1.5V
6
1
0
Input Voltage VIN(V)
Output Current IOUT(mA)
01 4 67532
2
3
4
5
Topt=25°C
VDS=-2.1V
-0.5V
-1.0V
-1.5V
7) CD Pin Threshold Voltage vs. Temperature
R3112x09xA/C R3112x13xA/C
0.8
0.3
0.2
Temperature Topt(°C)
C
D
Pin Threshold Voltage V
TCD
(V)
-50 -25 75 1000 25 50
0.4
0.5
0.6
0.7
V
DD
=0.99V
1.0
0.5
0.4
Temperature Topt(°C)
C
D
Pin Threshold Voltage V
TCD
(V)
-50 -25 75 1000 25 50
0.6
0.7
0.8
0.9
V
DD
=1.43V
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
16
R3112x27xA/C R3112x45xA/C
1.9
1.4
1.3
Temperature Topt(°C)
CD Pin Threshold Voltage VTCD(V)
-50 -25 75 1000 25 50
1.5
1.6
1.7
1.8
VDD=2.97V
2.9
2.4
2.3
Temperature Topt(°C)
C
D
Pin Threshold Voltage V
TCD
(V)
-50 -25 75 1000 25 50
2.5
2.6
2.7
2.8
V
DD
=4.95V
8) CD Pin Output Current vs. Input Voltage
R3112x09xA/C R3112x13xA/C
1.0
0.8
0.4
0.2
0
Input Voltage V
IN
(V)
C
D
Pin Output Current I
CD
(mA)
0 0.2 0.4 0.6 0.8 1
0.6
V
DS
=0.5V
Topt=-40°C
85°C
25°C
1.0
0.8
0.4
0.2
0
Input Voltage V
IN
(V)
C
D
Pin Output Current I
CD
(mA)
0 0.3 0.6 0.9 1.2 1.5
0.6
V
DS
=0.5V
Topt=-40°C
85°C
25°C
R3112x27xA/C R3112x45xA/C
1.0
0.8
0.4
0.2
0
Input Voltage VIN(V)
CD Pin Output Current ICD(mA)
0 0.5 1 2.5231.5
0.6
VDS=0.5V
Topt=-40°C
85°C
25°C
1.0
0.8
0.4
0.2
0
Input Voltage VIN(V)
C
D
Pin Output Current I
CD
(mA)
012 435
0.6
V
DS
=0.5V
Topt=-40°C
85°C
25°C
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
17
9) CD Pin Output Current vs. VDS (Topt25C)
R3112x09xA/C R3112x13xA/C
0.7
0.6
0.3
0.2
0.1
0
VDS(V)
CD Pin Output Current ICD(mA)
0 0.2 0.4 0.6 0.8 1
0.4
0.5
Topt=25°C
V
DD
=0.85V
0.7V
1.0
0.7
0.3
0.2
0.1
0
V
DS
(V)
C
D
Pin Output Current I
CD
(mA)
0 0.2 0.4 0.6 0.8 1
0.6
0.8
0.9
0.4
0.5
Topt=25°C
VDD=1.0V
0.85V
0.7V
R3112x27xA/C R3112x45xA/C
3.0
2.0
1.0
0.5
0
V
DS
(V)
C
D
Pin Output Current I
CD
(mA)
0 0.5 1 1.5 2 2.5
2.5
1.5
Topt=25°C
VDD=2.5V
1.0V
1.5V
2.0V
4.5
2.0
1.0
0.5
0
VDS(V)
CD Pin Output Current ICD(mA)
0 0.5 1.5 2.5 3.5 41 2 3
2.5
3.0
3.5
4.0
1.5
Topt=25°C
V
DD
=4.0V
1.0V
2.0V
1.5V
2.5V
3.5V 3.0V
10) Output Delay Time vs. External Capacitance (Topt25C)
R3112x09xA/C R3112x13xA/C
1000
0.01
External Capacitance CD(μF)
Output Deley Time tx(ms)
0.0001 0.001 0.01 0.1
0.1
1
10
100
Topt=25°C
t
PHL
t
D
1000
0.01
External Capacitance CD(μF)
Output Delay tx(ms)
0.0001 0.001 0.01 0.1
0.1
1
10
100
Topt=25°C
t
PHL
t
D
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
18
R3112x27xA/C R3112x45xA/C
1000
0.01
External Capacitance C
D
(μF)
Output Delay Time tx(ms)
0.0001 0.001 0.01 0.1
0.1
1
10
100
Topt=25°C
t
PHL
t
D
1000
0.01
External Capacitance C
D
(μF)
Output Delay Time tx(ms)
0.0001 0.001 0.01 0.1
0.1
1
10
100
Topt=25°C
t
PHL
t
D
11) Delay Circuit Resistance vs. Temperature
R3112xxxxA/C
13
4
3
Temperature Topt(°C)
Delay Circuit Resistance R
D
(MΩ)
-50 -25 75 1000 25 50
7
6
5
8
9
12
11
10
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
R3112x
19
TECHNICAL NOTES
When connecting resistors to the device’s input pin
When connecting a resistor (R1) to an input of this device, the input voltage decreases by [Device’s
Consumption Current] x [Resistance Value] only. And, the cross conduction current*1, which occurs when
changing from the detecting state to the release state, is decreased the input voltage by [Cross Conduction
Current] x [Resistance Value] only. And then, this device will enter the re-detecting state if the input voltage
reduction is larger than the difference between the detector voltage and the released voltage.
When the input resistance value is large and the VDD is gone up at mildly in the vicinity of the released voltage,
repeating the above operation may result in the occurrence of output.
As shown in Figure A/B, set R1 to become 100 kΩ or less as a guide, and connect CIN of 0.1 μF and more to
between the input pin and GND. Besides, make evaluations including temperature properties under the actual
usage condition, with using the evaluation board like this way. As a result, make sure that the cross conduction
current has no problem.
V
DD
R1
GND
OUT pin
C
IN
*2
Figure A
Voltage
Detector
V
DD
R1
GND
OUT pin
C
IN
*2
Figure B
Voltage
Detector
R2
*1 In the CMOS output type, a charging current for OUT pin is included.
*2 Note the bias dependence of capacitors.
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.
Ricoh is committed to reducing the environmental loading materials in electrical devices
with a view to contributing to the protection of human health and the environment.
Ricoh has been providing RoHS compliant products since April 1, 2006 and Halogen-free products since
April 1, 2012.
Halogen Free
https://www.e-devices.ricoh.co.jp/en/
Sales&SupportOffices
RicohElectronicDevicesCo.,Ltd.
Shin-YokohamaOffice(InternationalSales)
2-3,Shin-Yokohama3-chome,Kohoku-ku,Yokohama-shi,Kanagawa,222-8530,Japan
Phone:+81-50-3814-7687Fax:+81-45-474-0074
RicohAmericasHoldings,Inc.
675CampbellTechnologyParkway,Suite200Campbell,CA95008,U.S.A.
Phone:+1-408-610-3105
RicohEurope(Netherlands)B.V.
SemiconductorSupportCentre
Prof.W.H.Keesomlaan1,1183DJAmstelveen,TheNetherlands
Phone:+31-20-5474-309
RicohInternationalB.V.-GermanBranch
SemiconductorSalesandSupportCentre
OberratherStrasse6,40472Düsseldorf,Germany
Phone:+49-211-6546-0
RicohElectronicDevicesKoreaCo.,Ltd.
3F,HaesungBldg,504,Teheran-ro,Gangnam-gu,Seoul,135-725,Korea
Phone:+82-2-2135-5700Fax:+82-2-2051-5713
RicohElectronicDevicesShanghaiCo.,Ltd.
Room403,No.2Building,No.690BiboRoad,PuDongNewDistrict,Shanghai201203,
People'sRepublicofChina
Phone:+86-21-5027-3200Fax:+86-21-5027-3299
RicohElectronicDevicesShanghaiCo.,Ltd.
ShenzhenBranch
1205,BlockD(JinlongBuilding),Kingkey100,HongbaoRoad,LuohuDistrict,
Shenzhen,China
Phone:+86-755-8348-7600Ext225
RicohElectronicDevicesCo.,Ltd.
Taipeioffice
Room109,10F-1,No.51,HengyangRd.,TaipeiCity,Taiwan(R.O.C.)
Phone:+886-2-2313-1621/1622Fax:+886-2-2313-1623
1.The productsand theproduct specificationsdescribed inthis documentare subjectto changeor discontinuationof
productionwithout notice forreasons
suchas improvement. Therefore,before decidingto use theproducts, please
refertoRicohsalesrepresentativesforthelatestinformationthereon.
2.The materialsin this documentmay notbe copiedor otherwise reproducedin wholeor inpart without priorwritten
consentofRicoh.
3.Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise
takingoutofyourcountrytheproductsorthetechnicalinformationdescribedherein.
4.Thetechnicalinformationdescribedinthisdocumentshowstypicalcharacteristicsofandexampleapplicationcircuits
fortheproducts.Thereleaseofsuchinformationisnottobeconstruedasawarrantyoforagrantoflicenseunder
Ricoh'soranythirdparty'sintellectualpropertyrightsoranyotherrights.
5.Theproductslistedinthisdocumentareintendedanddesignedforuseasgeneralelectroniccomponentsinstandard
applications (office equipment, telecommunication equipment, measuring instruments, consumer electronic products,
amusementequipment etc.).Those customersintending touse a productin anapplication requiringextreme quality
andreliability,forexample,inahighlyspecificapplicationwherethefailureormisoperationoftheproductcouldresult
inhumaninjuryordeath(aircraft,spacevehicle,nuclearreactorcontrolsystem,trafficcontrolsystem,automotiveand
transportationequipment,combustionequipment,safetydevices,lifesupportsystemetc.)shouldfirstcontactus.
6.Wearemakingourcontinuousefforttoimprovethequalityandreliabilityofourproducts,butsemiconductorproducts
arelikelytofailwithcertainprobability.Inordertopreventanyinjurytopersonsordamagestopropertyresultingfrom
suchfailure,customersshouldbecarefulenoughtoincorporatesafetymeasuresintheirdesign,suchasredundancy
feature,firecontainmentfeatureandfail-safefeature.Wedonotassumeanyliability
orresponsibilityforanylossor
damagearisingfrommisuseorinappropriateuseoftheproducts.
7.Anti-radiationdesignisnotimplementedintheproductsdescribedinthisdocument.
8.The X-ray exposure can influence functions and characteristics of the products. Confirm the product functions and
characteristicsintheevaluationstage.
9.WLCSP products should be used in light shielded environments. The light exposure can influence functions and
characteristicsoftheproductsunderoperationorstorage.
10.There can be variation in the marking when different AOI (Automated Optical Inspection) equipment is used. In the
caseofrecognizingthemarkingcharacteristicwithAOI,pleasecontactRicohsalesorourdistributorbeforeattempting
touseAOI.
11.
PleasecontactRicohsalesrepresentativesshouldyouhaveanyquestionsorcommentsconcerningtheproductsor
thetechnicalinformation.
*R3112Qxx2 (SC-88A) is the limited product. As of March in 2018.